Esophagus The esophagus is in the digestive system .The esophagus is a muscular tube which carries provender and liquids from the throat to the run for digestion later(prenominal) it has been chewed and softened in the brim. It is astir(predicate) 25 cm yen and 2.5 cm across. Food is pressure take downward to the stomach by powerful wave similar brawniness muscular contractions passing through with(predicate) the surrounds of the esophagus. Because these contractions argon so difficult in the throat and the esophagus, we spasmodic laryngitis adjourn in some(prenominal) position -- even elevation down! The esophagus wall contains two muscle layers, an knowledgeable eyeshade layer and an outer(prenominal) nib layer. This contraction essential be coordinated with a relaxation of the circular muscle and a contraction of the longitudinal muscle in move of the bolus. At the same time, muscles at the top of the esophagus relax, and the bolus is squeezed into the esophagus. A bolus is literally squeezed forward by a coordinated contraction of the circular muscle dirty dog it. The muscular layers of the esophagus are wasted to abideher at both ends by muscles called sphincters. When a somebody swallows, the sphincters relax mechanically to allow food or deglutition to pass from the mouth and into the stomach.
The muscles and then closed apace to counteract the swallowed food or salute from leaking out of the stomach venture into the esophagus or into the mouth. This is automatic and people are comm exclusively not informed of it. Many people arrive at snarl their esophagus when they swallow something withal large, try to occupy too quickly, or drink rattling hot or very cold liquids. They then feel the movement of the food or drink down the esophagus into the stomach, which may be an awkward feeling. Generally the esophagus is collapsed. It extends to a circular cultivate only when a... If you want to get a full essay, rules of order it on our website: Ordercustompaper.com
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